Tile and glass cutter



imm.

ATTO R N EY July 14, 1942.

E. E. NASTRI TILE AND GLASS CUTTER Filed May 9, 1941 Patented July 14,1942 UN ITE D" STAT ES PAT EN T OF FICE TILE AND GLASS CUTTER Emil E.Nastri, Brooklyn, N. Y; Application May 9, 1941, Serial No. 392,749

2 Claims.

This invention relates to improvements in ma chines for cutting andbreaking or crushing articles, particularly tiles and glass plates orthe like material, and it is the principal object of the invention toprovide such a machine which is simple and inexpensive in itsconstruction, yet durable and highly eicient in use.

Another object of my invention is the provision of a cutting machine orapparatus of this type which by the simple operation of a springcontrolled handle bar or lever engages the material to be cut or brokenwith a knife blade projecting from a base between two cushioning pads.

A further object of my invention is the provision of a cutting machineof the above character equipped with an adjustable guide for thematerial to be cut.

A still further object of the invention is the provision of an apparatusin which a movable Crusher tool engages the article as it is heldbetween said tool and adjustable anvil or the like.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a top plan view of a cutter apparatus constructed according tomy invention.

Fig. 2 is a side elevation thereof, partly in section.

Fig. 3 is a cross-section on line 3 3 of Figure 1.

As illustrated in Figures 1, 2 and 3, the machine comprises a base plate I on which are mounted the cushioning pads II and I2 leaving alimited space between their opposite inner side edges through which thecutter I3 projects. Cooperating with this cutter is a longitudinally eX-tending handle bar or lever I4 mounted near its front end between twoposts, I5, I6 for vertical movement which are secured with their feet tothe base plate and connected at their upper ends by means of the pin I'Ito limit the upward movement of the handle bar which carries at itsprojecting front end an operating knob I8 or the like. Near its rear endthe handle bar I4 is guided through a frame or bracket I9 having itsside walls slotted, as at 20, and in the oppositely disposed slots ismounted for up and down movement a cross-pin 2I or the like to the outerends of which projecting beyond the frame I9 are attached the upper endsof the springs 22, 23, the lower ends of which are attached to across-pin 24. The springs 22, 23 tend to normally holding the rear endof the handle I4 down and thus the front end with its knob elevated.Behind the frame I9 the handle bar I4 is guided through a bracket 25 anda screw 26 extends into said bracket from above for limiting the upward'movement of the rear end of the handle-bar I4; Intermediate `the postI5, Iand the frame I9, the handle-bar I4 carries a crosshead2`1secured'thereto by means of a screw 23 or the like and having itslower face 29 recessed and shaped to serve as a means for holding thework-piece to be cut in position.

A guide-piece or member 3U for the work piece is adjustably held to amember 3 I, secured to the base plate, and member 30 has a longitudinalslot 32 through which extends a bolt 33 carrying a wing nut. It will beclear that such a guide member for the Work-piece may be constructed inany suitable way differing from that shown without deviating from myinvention.

A cross-channel 34 on the base plate serves for the reception of wastematerial which can readily be removed therefrom as both ends of thechannel are open.

In operation, the tile or glass plate or other material to be cut isplaced onto the cushioned portion of the base plate and the guide member3U is so adjusted that the line on which the material is to be cut is inalignment with the cutter I3 therebelow, and if now the handle ispressed down with the knob the cross-head 21 will firmly hold the samein its adjusted position and a further depression of the handle willengage the material to be cut with the cutter and cut it along thepredetermined line determined by the guide while held by the member 2l.

It will be clear that the springs 22, 23 will tend to hold the front endof the handle I4 normally in an elevated position and return the sameinto its position of rest after each cutting operation. Dust and debriscan be accumulated in the channel 34 and then easily removed through theopen ends thereof.

The up and down movements of the handle bar I4 can also be limited bymeans of an adjustable screw 34'.

It will be understood that I have disclosed the preferred forms of myinvention only as a few examples of the many possible ways topractically construct my machine, and that I may make such changes inits general arrangement and in the construction of its minor details ascome within the scope of the appended claims without departure from thespirit of my invention and the principle involved.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a tile and glass cutter of the character described, a base-plate,a pair of cushions on said plate for yieldingly supporting thework-piece, a cutter longitudinally extending on said baseplate and heldthereto projecting between the adjoining side edges of said cushions, alongitudinally extending handle bar above said cutter, a cross-pinextending through and moving in the slot of a bracket on said base-plateand having springs attached to its ends, said springs also attached tosaid base-plate to constitute a means to normally hold one end of saidhandle-bar also passing through the slot of said bracket depressed andits other end above said cutter and allowing its depression against saidbase to press the material to be cut against the cutter, a cross-headhaving its lower face recessed attached to said handle bar to hold saidmaterial during the cutting operation, a slotted sliding memberadjustable on said base-plate presenting a means to adjust and guidesaid material in its proper position to cut it at a predeterminedsection or portion, a pin to limit the upward movement of said handlebar at one end thereof, and means for allowing the removal of theresidue or waste accumulating during the cutting operation.

2. In a cutter as described, a base-plate, cushions or pads forsupporting the work-piece on said base-plate and spaced from one anotherthereon, a cutter projecting through the space between said pads, and alongitudinally extending handle-bar or lever arranged for verticalmovement above said cutter and co-operating therewith to cut thework-piece resting on said pads when depressed against said cutter, aslotted bracket on said baseplate through the slot of which said leveris guided, a cross-pin movably passed through the slot in said bracketwith its ends extending therefrom, springs attached to the ends of saidpin and to the base-plate to normally hold one end of said leverdepressed and the other elevated, a cross-head on said lever having itslower face formed on the arc of a circle for engaging and holding theworkpiece in position during the cutting operation, and a slotted,substantially triangular guide member adjustable on said base-plate forproperly guiding the work-piece relatively to said cross-head.

EMIL E. NASTRI.

